Followup to Prius battery woes

[PeterB]

Filliam H. Muffman wrote:
Are the battery terminals and cable clamps free of oxide? It looks like $170 is a very good price for an AGM battery for a 2014 Prius III.

I am not sure about a Prius, but it typically takes 20 minutes to fully charge a 12 V battery with the gas engine running continuously at over 1500 rpm. Just idling at 800 rpm won't do it.

Did you use a Prius forum to get a recommendation on the solar charger?

Thanks everybody for information. The solar charger recommendation was from the original thread -- don't recall who made the suggestion, but I thought it seemed like a reasonable idea.

The voltage check -- as I said, done through Zus, but the Prius diagnostic screen is through the car itself, and I would assume the diagnostic is really measuring the voltage as load is put on it ... at least, one would hope so for a self-contained diagnostic!

I am tempted to try what Filliam has suggested, before I replace the battery. I was curious, so I Googled and found this: https://www.wildetoyota.com/how-to-jump-...pstarting/ ... which says to let it run for 8 hours (!!!) in Ready mode after jumpstarting ... I suppose I can do that, I have nothing to lose ... could just leave the car running overnight or something. Gas isn't really a problem for me at the moment. (Under non-corona conditions, I typically buy about $20-30 worth of gas, usually about 20 gallons, which lasts me 4-6 months.)

And yes, it may be time for a new battery. I know the manufacturing quality isn't what it used to be -- car batteries lasting 10+ years being a distant memory.